Abstract
There is enormous interest in combining two or more nanoparticles for various biomedical applications, especially in anti-cancer agent delivery. In this study, the microsphere nanoparticles were prepared (MSNPs) and their impact on cancer cells was examined. The MSNPs were prepared by using the hydrothermal method where strontium (Sr), barium (Ba), dysprosium (Dy), samarium (Sm), and iron oxide (Fe8−2xO19) were combined, and dysprosium (Dy) and samarium (Sm) was substituted with strontium (Sr) and barium (Ba), preparing Sr0.5Ba0.5DyxSmxFe8−2xO19 (0.00 ≤ x ≤ 1.0) MSNPs. The microspheres were characterized by X-ray powder diffraction (XRD), high-resolution transmission electron microscopy (HR-TEM), transmission electron microscopy (TEM), scanning electron microscopy (SEM), and energy-dispersive X-ray spectroscopy (EDX) techniques. The diffraction pattern of nanohexaferrites (NHFs) reflected the signature peaks of the hexagonal structure. The XRD revealed a pure hexagonal structure without any undesired phase, which indicated the homogeneity of the products. The crystal size of the nanoparticles were in the range of 22 to 36 nm by Scherrer’s equation. The SEM of MSNPs showed a semi-spherical shape with a high degree of aggregation. TEM and HR-TEM images of MSNPs verified the spherical shape morphology and structure that approved an M-type hexaferrite formation. The anti-cancer activity was examined on HCT-116 (human colorectal carcinoma) and HeLa (cervical cancer cells) using MTT (3-(4,5-Dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide) assay and post-48 h treatment of MSNPs caused a dose-dependent inhibition of HCT-116 and HeLa cell proliferation and growth. Conversely, no significant cytotoxic effect was observed on HEK-293 cells. The treatments of MSNPs also induced cancer cells DNA disintegration, as revealed by 4′,6-diamidino-2-phenylindole (DAPI) staining. Finally, these findings suggest that synthesized MSNPs possess potential inhibitory actions on cancerous cells without harming normal cells.
Highlights
Nanomaterials are promising materials for various biomedical applications, including diagnosis and treatment of cancers
The X-ray powder diffraction (XRD) revealed a pure hexagonal structure without any undesired phase which indicated the homogeneity of the product
The microsphere nanoparticles were prepared (MSNPs) were prepared by using hydrothermal method where strontium (Sr), barium (Ba), dysprosium (Dy), samarium (Sm) and iron oxide (Fe8−2x O19 ) were combined, and dysprosium (Dy) and samarium (Sm) were substituted with strontium (Sr) and barium (Ba), and Sr0.5 Ba0.5 Dyx Smx Fe8−2x O19 (0.00 ≤ x ≤ 1.0) MSNPs were prepared
Summary
Nanomaterials are promising materials for various biomedical applications, including diagnosis and treatment of cancers. Inorganic nanobased carriers have been used in drug delivery in different types of cancer cells because of their unique and versatile characteristics such as better biocompatibility, effective and precise cancer cell penetration [2,3,4,5]. Many inorganic nanomaterials such as carbon materials, iron oxide, calcium phosphate, gold, and silicon oxide have been used in many applications [6,7,8,9,10,11,12]. New and better strategies are required to overcome these issues
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
